有线数字电视中多通道字幕的实现

In Wired Digital Television Multichannel Captions Realization

有线电视数字化改造后,在TS流上插入字幕的方式也与原来的模拟系统完全不同了,传统的模拟字幕机已无法实现在多个频道中同时叠加字幕。详细介绍了目前有线数字电视中多通道插入字幕的实现过程,为市、县级网络公司、电视台数字电视广告增值业务提供了很好的借鉴。

After completed the cable TV digitization transformation,the way of the title insertion on the TS class has completely been different from the original analogous system.The traditional simulation film titler has been unable to realize simultaneously superimposes the captions in many channels.This article introduced in detail the process of realizing the multichannel title insertion in the present wired digital television and has also provided some useful advices for the television station digital television advertisement value-added service.